Red Bull Energy Drink 20 Fl Oz (Pack of 12)

Q: Where is prime shipping for this product?

That depends on your location. Amazon has distribution centers in various States.

Q: Why has the flavor changed in the last 6 weeks.. does not taste as good as last year

Sorry to hear this, maybe you caught a bad batch somehow. I've been drinking Red Bull for a long time and I haven't noticed any change. Nor have I read or heard of any manufacturing changes

Q: is it contain sucralose？ cancer？

This product doesn't contain sucralose. That ingredient is normally found in soda pop.

Q: why does it say a case of 12? This is supposed to be 24 cans of 20ozs correct?

The 20oz cans only come in a 12 pack size. If you need 24 cans then you'll need to order 2 12 packs. The 16oz size are also 12 pack size. 8 & 12oz are the ones that come in 24 pack cases.